//! Zoi集成服务模块
//! 为Kuya项目提供Zoi包管理和环境设置功能

use std::sync::Arc;
use async_trait::async_trait;
use log::{info, error};
use tokio::sync::RwLock;

// 导入Kuya的能力系统和服务框架
use crate::{CapabilityWrapper, ServiceError};

/// Zoi服务接口定义
#[async_trait]
pub trait ZoiService {
    /// 安装Zoi包
    async fn install_package(&self, source: &str, force: bool) -> Result<(), ServiceError>;
    
    /// 卸载Zoi包
    async fn uninstall_package(&self, package_name: &str) -> Result<(), ServiceError>;
    
    /// 更新Zoi包
    async fn update_package(&self, source: &str) -> Result<(), ServiceError>;
    
    /// 同步包数据库
    async fn sync_packages(&self) -> Result<(), ServiceError>;
    
    /// 自动移除不再需要的依赖包
    async fn autoremove_packages(&self) -> Result<(), ServiceError>;
    
    /// 获取已安装的包列表
    async fn get_installed_packages(&self) -> Result<Vec<()>, ServiceError>;
    
    /// 检查包是否已安装
    async fn is_package_installed(&self, package_name: &str) -> Result<bool, ServiceError>;
}

/// Zoi服务的具体实现
pub struct ZoiServiceImpl {
    // 用于线程安全访问的内部状态
    inner: Arc<RwLock<ZoiServiceInner>>,
}

struct ZoiServiceInner {
    // 服务内部状态
    initialized: bool,
}

impl ZoiServiceImpl {
    /// 创建新的Zoi服务实例
    pub fn new() -> Self {
        Self {
            inner: Arc::new(RwLock::new(ZoiServiceInner {
                initialized: false,
            }))
        }
    }
    
    /// 初始化Zoi服务
    pub async fn initialize(&self) -> Result<(), ServiceError> {
        let mut inner = self.inner.write().await;
        if inner.initialized {
            return Ok(());
        }
        
        info!("初始化Zoi服务...");
        
        // 执行Zoi初始化操作
        // 这里可以添加额外的初始化逻辑
        
        inner.initialized = true;
        info!("Zoi服务初始化成功");
        
        Ok(())
    }
}

#[async_trait]
impl ZoiService for ZoiServiceImpl {
    async fn install_package(&self, source: &str, force: bool) -> Result<(), ServiceError> {
        info!("安装Zoi包: {} (force: {})", source, force);
        // 临时实现：返回不支持的操作错误
        Err(ServiceError::Other("Zoi包管理功能已禁用".to_string()))
    }
    
    async fn uninstall_package(&self, package_name: &str) -> Result<(), ServiceError> {
        info!("卸载Zoi包: {}", package_name);
        // 临时实现：返回不支持的操作错误
        Err(ServiceError::Other("Zoi包管理功能已禁用".to_string()))
    }
    
    async fn update_package(&self, source: &str) -> Result<(), ServiceError> {
        info!("更新Zoi包: {}", source);
        // 临时实现：返回不支持的操作错误
        Err(ServiceError::Other("Zoi包管理功能已禁用".to_string()))
    }
    
    async fn sync_packages(&self) -> Result<(), ServiceError> {
        info!("同步Zoi包数据库");
        // 临时实现：返回不支持的操作错误
        Err(ServiceError::Other("Zoi包管理功能已禁用".to_string()))
    }
    
    async fn autoremove_packages(&self) -> Result<(), ServiceError> {
        info!("自动移除不再需要的Zoi依赖包");
        // 临时实现：返回不支持的操作错误
        Err(ServiceError::Other("Zoi包管理功能已禁用".to_string()))
    }
    
    async fn get_installed_packages(&self) -> Result<Vec<()>, ServiceError> {
        info!("获取已安装的Zoi包列表");
        // 临时实现：返回空列表
        Ok(Vec::new())
    }
    
    async fn is_package_installed(&self, package_name: &str) -> Result<bool, ServiceError> {
        info!("检查Zoi包是否已安装: {}", package_name);
        // 临时实现：总是返回false
        Ok(false)
    }
}

/// 为Zoi服务创建能力包装器
impl CapabilityWrapper for Box<dyn ZoiService> {
    fn get_capability_id(&self) -> String {
        "zoi_service".to_string()
    }
    
    fn get_capability_name(&self) -> String {
        "Zoi包管理服务".to_string()
    }
    
    fn get_capability_description(&self) -> String {
        "提供包管理、依赖解析和环境设置功能".to_string()
    }
}

/// Zoi服务错误类型
#[derive(Debug, thiserror::Error)]
pub enum ZoiServiceError {
    #[error("Zoi操作失败: {0}")]
    ZoiOperationFailed(String),
    
    #[error("服务未初始化")]
    NotInitialized,
    
    #[error("其他错误: {0}")]
    Other(String),
}

// 从Zoi错误转换为ServiceError
sync_wrapper::sync_wrapper!(ZoiResult<T> => std::result::Result<T, ZoiServiceError>);